How do I merge two containers efficiently with std::deque for large datasets?

In C++, merging two containers can be efficiently done using the `std::deque` type, especially when dealing with large datasets. The `std::deque` (double-ended queue) allows fast insertions and deletions from both ends. Below is an example of how to achieve this.

C++, std::deque, merge containers, large datasets, efficient merging

This article describes the efficient merging of two `std::deque` containers in C++, focusing on performance considerations for large datasets.


        #include <deque>
        #include <iostream>

        int main() {
            std::deque deque1 = {1, 2, 3, 4, 5};
            std::deque deque2 = {6, 7, 8, 9, 10};

            // Merging deque2 into deque1
            deque1.insert(deque1.end(), deque2.begin(), deque2.end());

            // Output the merged deque
            for (const auto& elem : deque1) {
                std::cout << elem << " ";
            }
            std::cout << std::endl;

            return 0;
        }

This code snippet demonstrates how to merge two `std::deque` objects by inserting the contents of the second deque into the end of the first. This method is optimal for maintaining the order of elements while harnessing the efficiency of a deque for fast insertions.

How do I merge two containers efficiently with std::deque for large datasets?

Popular Topics

Recent Languages

How do I merge two containers efficiently with std::deque for large datasets?

Related Questions

Popular Topics

Recent Languages